Apt Holman Power Amplifier APT - 1 Cambridge Massachusetts
Item History & Price
| Reference Number: Avaluer:7077652 | Model: APT-1 |
| Brand: APT ( Holman ) | Country/Region of Manufacture: United States |
| Sold new in 1979 for $750.00: That's $2,646.11 in today's dollars! |
This is an extremely rare find on a state of the art stereo power amp from the late 70"s. The technology was way ahead of it's time and the specs still stand up to anything new out there.This was a NOS piece taken out of the box less than a year ago. It was lightly used for about a year, by a personal friend of mine on a pair of Acoustat Hybrid speakers and preformed flawlessly. It is in excellent condition and a very rare audiophile grade stereo power amplifier.Apt Corporation Ca...mbridge Massachusetts Holman Power Amplifier 1Description
The Apt 1 Amplifier is a power amplifier for driving loudspeakers in a wide range of home music systems.It provides a flexible complement to the Apt/Holman pre amplifier, but it is meant to allow an optimum match, without detrimental interactions, to any other possible system components.The chosen design supplies the maximum useful power presently attainable without concessions in reliability or cost-effectiveness. It features novel approaches to protection circuitry and power supply design, as well as DC and AC stability.It incorporates psycho acoustically optimized output monitoring indicators, switching for both bridging (monaural) operation and loudspeaker impedance matching. A power transformer with low external flux minimizes the amplifier's radiated hum field.The flat, U-I lamination transformer has also allowed a convenient mechanical design, with a horizontal component layout making all parts accessible at the same time. Most servicing points can be reached by removing just the top cover and the two amplifier heat-sink modules.SpecificationsPower output: 100 watts per channel into 8Ω (stereo)Frequency response: 1Hz to 30kHzTotal harmonic distortion: 0.03%Damping factor: 200Input sensitivity: 0.925VSignal to noise ratio: 80dBSpeaker load impedance: 4Ω to 16ΩDimensions: 87 x 429 x 265mmWeight: 10kgChasrock Services is ( ISTA 6-FEDEX_A Protocol ) certified in electronic packaging. It will be double boxed, surrounded in foam to insure safe undamaged delivery to your home or business. It does require some expert packaging experience, proper packaging materials and lots of time to pack it right, so it does get there safely. I think it's worth a few extra bucks, most items can't be replaced for any price. A note for you eBay global customers: ( I will get it to your door safely and insured.)
I pride myself on extreme over protective packaging. ( Please look at my feedback! ) I will only ship to the 48 contiguous states or Ebay global! I encourage eBay global shipping. Payment is expected in 48 hours of purchase and on the same token it will ship on the next business day. If you need more time, just send a message and we will work something out.
The Apt 1 Amplifier is a power amplifier for driving loudspeakers in a wide range of home music systems.It provides a flexible complement to the Apt/Holman pre amplifier, but it is meant to allow an optimum match, without detrimental interactions, to any other possible system components.The chosen design supplies the maximum useful power presently attainable without concessions in reliability or cost-effectiveness. It features novel approaches to protection circuitry and power supply design, as well as DC and AC stability.It incorporates psycho acoustically optimized output monitoring indicators, switching for both bridging (monaural) operation and loudspeaker impedance matching. A power transformer with low external flux minimizes the amplifier's radiated hum field.The flat, U-I lamination transformer has also allowed a convenient mechanical design, with a horizontal component layout making all parts accessible at the same time. Most servicing points can be reached by removing just the top cover and the two amplifier heat-sink modules.SpecificationsPower output: 100 watts per channel into 8Ω (stereo)Frequency response: 1Hz to 30kHzTotal harmonic distortion: 0.03%Damping factor: 200Input sensitivity: 0.925VSignal to noise ratio: 80dBSpeaker load impedance: 4Ω to 16ΩDimensions: 87 x 429 x 265mmWeight: 10kgChasrock Services is ( ISTA 6-FEDEX_A Protocol ) certified in electronic packaging. It will be double boxed, surrounded in foam to insure safe undamaged delivery to your home or business. It does require some expert packaging experience, proper packaging materials and lots of time to pack it right, so it does get there safely. I think it's worth a few extra bucks, most items can't be replaced for any price. A note for you eBay global customers: ( I will get it to your door safely and insured.)
I pride myself on extreme over protective packaging. ( Please look at my feedback! ) I will only ship to the 48 contiguous states or Ebay global! I encourage eBay global shipping. Payment is expected in 48 hours of purchase and on the same token it will ship on the next business day. If you need more time, just send a message and we will work something out.
